The foliage of these half-hardy annuals is very ornamental. The plants like a rich soil. Sow the seed early in spring in a slight heat, harden off gradually, and put out at the end of May in a warm, sheltered spot. They may also be propagated by cuttings.
The palma christi (castor oil plant) grows to a height of 3 ft. to 6 ft.
Plant classification : Half-hardy, Annual